I prefer a flat in Inverness to       in Perth , because I want to live near my Mom’s .

A. one     B. that         C. it       D. this

【详解】考查代词的用法。one表示泛指，相当于“a(an)+名词”，代替的是同类事物中的“一个”；that表示特指，相当于“the+名词”；it所代替的是前面提到过的同一事物；this表示近指。故选答案A。

The fire, believed to     due to illegal construction on the building’s roof, was brought under control after an hour.

1. A.
   have occurred
2. B.
   occur
3. C.
   have been occurring
4. D.
   be occurring

The local TV program Kankankan(看看看) can often help solve problems and draw  attention to situations ________ help is needed.

1. A.
   that
2. B.
   whose
3. C.
   which
4. D.
   where

—How long            in America?
—Two years. I came back last month.

1. A.
   have you studied
2. B.
   do you study
3. C.
   would you study
4. D.
   did you study